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-rw-r--r--Applications/Help/ManualModel.cpp199
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diff --git a/Applications/Help/ManualModel.cpp b/Applications/Help/ManualModel.cpp
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-/*
- * Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "ManualModel.h"
-#include "ManualNode.h"
-#include "ManualPageNode.h"
-#include "ManualSectionNode.h"
-#include <AK/ByteBuffer.h>
-#include <LibCore/File.h>
-#include <LibGUI/FilteringProxyModel.h>
-
-static ManualSectionNode s_sections[] = {
- { "1", "User programs" },
- { "2", "System calls" },
- { "3", "Libraries" },
- { "4", "Special files" },
- { "5", "File formats" },
- { "6", "Games" },
- { "7", "Miscellanea" },
- { "8", "Sysadmin tools" }
-};
-
-ManualModel::ManualModel()
-{
- m_section_open_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/book-open.png"));
- m_section_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/book.png"));
- m_page_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/filetype-unknown.png"));
-}
-
-Optional<GUI::ModelIndex> ManualModel::index_from_path(const StringView& path) const
-{
- for (int section = 0; section < row_count(); ++section) {
- auto parent_index = index(section, 0);
- for (int row = 0; row < row_count(parent_index); ++row) {
- auto child_index = index(row, 0, parent_index);
- auto* node = static_cast<const ManualNode*>(child_index.internal_data());
- if (!node->is_page())
- continue;
- auto* page = static_cast<const ManualPageNode*>(node);
- if (page->path() != path)
- continue;
- return child_index;
- }
- }
- return {};
-}
-
-String ManualModel::page_path(const GUI::ModelIndex& index) const
-{
- if (!index.is_valid())
- return {};
- auto* node = static_cast<const ManualNode*>(index.internal_data());
- if (!node->is_page())
- return {};
- auto* page = static_cast<const ManualPageNode*>(node);
- return page->path();
-}
-
-Result<StringView, OSError> ManualModel::page_view(const String& path) const
-{
- if (path.is_empty())
- return StringView {};
-
- {
- // Check if we've got it cached already.
- auto mapped_file = m_mapped_files.get(path);
- if (mapped_file.has_value())
- return StringView { mapped_file.value()->bytes() };
- }
-
- auto file_or_error = MappedFile::map(path);
- if (file_or_error.is_error())
- return file_or_error.error();
-
- StringView view { file_or_error.value()->bytes() };
- m_mapped_files.set(path, file_or_error.release_value());
- return view;
-}
-
-String ManualModel::page_and_section(const GUI::ModelIndex& index) const
-{
- if (!index.is_valid())
- return {};
- auto* node = static_cast<const ManualNode*>(index.internal_data());
- if (!node->is_page())
- return {};
- auto* page = static_cast<const ManualPageNode*>(node);
- auto* section = static_cast<const ManualSectionNode*>(page->parent());
- return String::formatted("{}({})", page->name(), section->section_name());
-}
-
-GUI::ModelIndex ManualModel::index(int row, int column, const GUI::ModelIndex& parent_index) const
-{
- if (!parent_index.is_valid())
- return create_index(row, column, &s_sections[row]);
- auto* parent = static_cast<const ManualNode*>(parent_index.internal_data());
- auto* child = &parent->children()[row];
- return create_index(row, column, child);
-}
-
-GUI::ModelIndex ManualModel::parent_index(const GUI::ModelIndex& index) const
-{
- if (!index.is_valid())
- return {};
- auto* child = static_cast<const ManualNode*>(index.internal_data());
- auto* parent = child->parent();
- if (parent == nullptr)
- return {};
-
- if (parent->parent() == nullptr) {
- for (size_t row = 0; row < sizeof(s_sections) / sizeof(s_sections[0]); row++)
- if (&s_sections[row] == parent)
- return create_index(row, 0, parent);
- ASSERT_NOT_REACHED();
- }
- for (size_t row = 0; row < parent->parent()->children().size(); row++) {
- ManualNode* child_at_row = &parent->parent()->children()[row];
- if (child_at_row == parent)
- return create_index(row, 0, parent);
- }
- ASSERT_NOT_REACHED();
-}
-
-int ManualModel::row_count(const GUI::ModelIndex& index) const
-{
- if (!index.is_valid())
- return sizeof(s_sections) / sizeof(s_sections[0]);
- auto* node = static_cast<const ManualNode*>(index.internal_data());
- return node->children().size();
-}
-
-int ManualModel::column_count(const GUI::ModelIndex&) const
-{
- return 1;
-}
-
-GUI::Variant ManualModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
-{
- auto* node = static_cast<const ManualNode*>(index.internal_data());
- switch (role) {
- case GUI::ModelRole::Search:
- if (!node->is_page())
- return {};
- return String(page_view(page_path(index)).value());
- case GUI::ModelRole::Display:
- return node->name();
- case GUI::ModelRole::Icon:
- if (node->is_page())
- return m_page_icon;
- if (node->is_open())
- return m_section_open_icon;
- return m_section_icon;
- default:
- return {};
- }
-}
-
-void ManualModel::update_section_node_on_toggle(const GUI::ModelIndex& index, const bool open)
-{
- auto* node = static_cast<ManualSectionNode*>(index.internal_data());
- node->set_open(open);
-}
-
-TriState ManualModel::data_matches(const GUI::ModelIndex& index, GUI::Variant term) const
-{
- auto view_result = page_view(page_path(index));
- if (view_result.is_error() || view_result.value().is_empty())
- return TriState::False;
-
- return view_result.value().contains(term.as_string()) ? TriState::True : TriState::False;
-}
-
-void ManualModel::update()
-{
- did_update();
-}
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